Piezobee -a very simple and cheap power filter - Page 2

audiojoy · 7th April 2009, 06:32 AM

DAve that looks like a great idea, the bigger the volume of the 'piezo'the more effective it seems to be. Please try the large diameter cheapo version on ebay first and let me know what you think about the sound changes.

audiojoy · 7th April 2009, 06:33 AM

AHAJA just email me at the address I gave you using the more usual non diyaudio routes for email contact.
I can send you my email address again if you need it

Luke

audiojoy · 9th April 2009, 01:29 PM

the piezo discs come in different sizes choose the largest size as the more of these i add into the power supply circuit the more benefit i seem to get.

DaveM · 9th April 2009, 02:36 PM

I just ordered up a bunch of the disks from ebay. I will let you know how it goes with them.

DaveM · 9th April 2009, 07:11 PM

I hear what you are saying and maybe we should simply talk about them as power supply filters. Jack Bybee has nothing to do with it. I would love to try a set of bybee filters. The only problem for me is the audiofool markup. At $175 a pair for the small ones and $480 for the large gold ones, I just can't see it. $15 for some piezo's I can manage. Hell maybe I will even learn something in playing with them.

On a similar topic, I have heard the Walker audio High definition Links. They are a dramatic improvement. But the cost at $395 is not worth it to me. My amp cost less than that to build.

The point here is DIY, not buy it from someone who has already done it. I would say the real courage is to try something new and maybe learn from it.

john curl · 9th April 2009, 07:16 PM

I would agree.

audiojoy · 9th April 2009, 09:43 PM

perhaps it would have been better for me to use 'bybee-like filter concept' and not Bybee-DIY as it is not meant to be an actual copy but use of some of the design ideas.

I will see if DIY audio will change the title.

audiojoy · 10th April 2009, 07:28 AM

ok i see that the title has been corrected.

O thats interesting, I see quotes of John Curl's name as having been involved in some of the design work for bybee products! Is that correct?

Any thoughts on my 'resonator' ?

i did research the concepts used to describe the Bybee filter mechanism on their web site, and did use that in a rather crude way to identify material that might mimic some of the physics describing its action. I fully appreciate that in no way have I bought an actual Bybee filter and analysed it to clone it and I have no idea if the bybee and my discovery have anything in common in terms of how they affect the sound.

HOWEVER, I have just acquired two ACTUAL ORIGINAL BY Bees a couple of the large ones and the smaller sized one so will be able to do a head to head with the bybee in my set up some time this week end. Now that should be interesting!

tvicol · 10th April 2009, 02:42 PM

Hello audiojoy !

Just purchased few piezobee's from local market.

I'll give them a try next week in a player with SMPS.
Do you have any theoretical explanation behind your findings ?

Thanks for sharing this with us !

Regards,
Tibi

audiojoy · 10th April 2009, 07:23 PM

Hi Tvicol

i am trying hard to remember the reasons behind my investigation of piezo's, but it was as a direct result of reading about purification theory in a roundabout way described by Bybee. It was quite a number of years ago that i came across the idea.

i have no electronic background whatsoever, but Just off the top of my head (and this might sound like rubbish to our more expert colleagues but please bear with me and think of similes) I wonder if the piezo is acting as an amplifier/mimicker of the input electron flow across it. But that some how the 'impure electrons' are not amplified-mimicked to the same extent which makes them less obvious in the output signal. The input voltage must be acting in a mechanical manner which is exciting the piezo atoms and triggering off an equivalent copy flow of the input which then somehow becomes purer????????????????

I need to try it for dac output signals as well to see if it will work here also.

Please remember it did not work at all on my DAC but superbly on the Shigaclone. With as described above a subjective increase in output level to the signal heard at the speakers.

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7th April 2009, 06:32 AM	#11
audiojoy diyAudio Member Join Date: Sep 2005 Location: london	DAve that looks like a great idea, the bigger the volume of the 'piezo'the more effective it seems to be. Please try the large diameter cheapo version on ebay first and let me know what you think about the sound changes.

7th April 2009, 06:33 AM	#12
audiojoy diyAudio Member Join Date: Sep 2005 Location: london	AHAJA just email me at the address I gave you using the more usual non diyaudio routes for email contact. I can send you my email address again if you need it Luke

9th April 2009, 01:29 PM	#13
audiojoy diyAudio Member Join Date: Sep 2005 Location: london	the piezo discs come in different sizes choose the largest size as the more of these i add into the power supply circuit the more benefit i seem to get.

9th April 2009, 02:36 PM	#14
DaveM diyAudio Member Join Date: Feb 2003 Location: Vermont	I just ordered up a bunch of the disks from ebay. I will let you know how it goes with them.

9th April 2009, 07:11 PM	#15
DaveM diyAudio Member Join Date: Feb 2003 Location: Vermont	I hear what you are saying and maybe we should simply talk about them as power supply filters. Jack Bybee has nothing to do with it. I would love to try a set of bybee filters. The only problem for me is the audiofool markup. At $175 a pair for the small ones and $480 for the large gold ones, I just can't see it. $15 for some piezo's I can manage. Hell maybe I will even learn something in playing with them. On a similar topic, I have heard the Walker audio High definition Links. They are a dramatic improvement. But the cost at $395 is not worth it to me. My amp cost less than that to build. The point here is DIY, not buy it from someone who has already done it. I would say the real courage is to try something new and maybe learn from it.

9th April 2009, 07:16 PM	#16
john curl diyAudio Member Join Date: Jul 2003 Location: berkeley ca	I would agree.

9th April 2009, 09:43 PM	#17
audiojoy diyAudio Member Join Date: Sep 2005 Location: london	perhaps it would have been better for me to use 'bybee-like filter concept' and not Bybee-DIY as it is not meant to be an actual copy but use of some of the design ideas. I will see if DIY audio will change the title.

10th April 2009, 07:28 AM	#18
audiojoy diyAudio Member Join Date: Sep 2005 Location: london	ok i see that the title has been corrected. O thats interesting, I see quotes of John Curl's name as having been involved in some of the design work for bybee products! Is that correct? Any thoughts on my 'resonator' ? i did research the concepts used to describe the Bybee filter mechanism on their web site, and did use that in a rather crude way to identify material that might mimic some of the physics describing its action. I fully appreciate that in no way have I bought an actual Bybee filter and analysed it to clone it and I have no idea if the bybee and my discovery have anything in common in terms of how they affect the sound. HOWEVER, I have just acquired two ACTUAL ORIGINAL BY Bees a couple of the large ones and the smaller sized one so will be able to do a head to head with the bybee in my set up some time this week end. Now that should be interesting!

10th April 2009, 02:42 PM	#19
tvicol diyAudio Member Join Date: Jan 2005 Location: Bucharest	Hello audiojoy ! Just purchased few piezobee's from local market. I'll give them a try next week in a player with SMPS. Do you have any theoretical explanation behind your findings ? Thanks for sharing this with us ! Regards, Tibi

10th April 2009, 07:23 PM	#20
audiojoy diyAudio Member Join Date: Sep 2005 Location: london	Hi Tvicol i am trying hard to remember the reasons behind my investigation of piezo's, but it was as a direct result of reading about purification theory in a roundabout way described by Bybee. It was quite a number of years ago that i came across the idea. i have no electronic background whatsoever, but Just off the top of my head (and this might sound like rubbish to our more expert colleagues but please bear with me and think of similes) I wonder if the piezo is acting as an amplifier/mimicker of the input electron flow across it. But that some how the 'impure electrons' are not amplified-mimicked to the same extent which makes them less obvious in the output signal. The input voltage must be acting in a mechanical manner which is exciting the piezo atoms and triggering off an equivalent copy flow of the input which then somehow becomes purer???????????????? I need to try it for dac output signals as well to see if it will work here also. Please remember it did not work at all on my DAC but superbly on the Shigaclone. With as described above a subjective increase in output level to the signal heard at the speakers.